In this investigation the author presents a numerical study of heat and mass transfer by natural convection in an annular space delimited by two horizontal and confocal elliptical cylinders filled with a Newtonian fluid ...

Solar energy is the most important source of renewable energy, hover the exploitation of solar energy in Algeria is a major focus of research who knows a great development over the past decade. Currently there are two ...

The objective of this thesis is the theoretical and experimental study of the cathodoluminescence intensity (ICL) to determine the influence of different physical parameters: material parameters, parameters of the incident ...

The present work consists on the elaboration and the characterization of pure and As doped a-Se thin films in order to study the electronic and optical properties of a-Se. The first part of this thesis will treat the ...

Transparent conducting oxides (TCO) continue to attract considerable attention in terms fundamental and application, mainly because of their highly exploited properties. Special consideration was given to ZnO which is an ...

The present work deals with the preparation and the characterization of zinc oxide (ZnO) and zinc sulfide (ZnS) thin films by ultrasonic spray. Our goal is to carry a comprehensive study on the effect of the deposition ...